In the WWI the Germans torpedoe'd a US civilian ship
In WWII The Japanese bombed Pearl Harbour....
Basically the US didnt go into the wars until the opposing side bombed them
We did not want to go to war until the Japanese attacked Pearl Harbor. Shortly after we declared war on Japan, it was Germany who declared war on us. We had no say in the matter of war with Germany.
Germany
The Germans attacked Poland, this caused England and France to declare war on Germany, so Germany declared war on them.
The US did enter into an undeclared shooting war with Germany in the fall of 1941 because Germany has declared war on the US.
Shortly after Japan attacked the US at Pearl Harbor, Germany declared war on the US.
They were an ally of Japan
08 Dec 1941
the assasination of Franz Fernidad caused an uproar in Germany and austria, causing them to go to war
The U.S entered the war as a direct reaction to the Japanese act of war which was the bombing of Pearl Harbor.
The US went to war with Germany because Germany declared war on the US, on December 11, 1941. This was four days after Germany's ally Japan attacked the US fleet in Pearl Harbor, and three days after the US declared war on Japan. Germany was not obligated to declare war against the US under the terms of its treaty of alliance with Japan. Germany would have been obligated only if Japan were attacked, and not if Japan was itself the aggressor. Nevertheless Germany decided to open hostilities.
it caused the economy to go down
The US battled the central forces, which were Germany and Austria-Hungary.